/Engine/Source/Runtime/RenderCore/Public/RenderGraphUtils.h
struct FRDGTextureClearInfo
TOptional<FLin...
ClearColor
Optional : specifies the clear color. If not specified or if the clear color matches the fast clear color (and Viewport is zero), the clear will be done with render pass clear actions :
uint32
FirstMipIndex
Specifies which mip(s) to clear.
uint32
FirstSliceIndex
For texture arrays, specifies which slice(s) to clear.
uint32
NumMips
uint32
NumSlices
FIntRect
Viewport
Optional : specifies the area of the texture to clear (draws a quad to the requested viewport). If zero (and clear color is not passed or matches the fast clear color), the clear will be done with render pass clear actions :